Characteristics of digital waveguide meshes with more than three physical dimensions are studied. Especially, the properties of a 4-D mesh are analyzed and compared to waveguide structures of lower dimensionalities. The hypermesh produces a response with a dense and irregular modal pattern at high frequencies, which is beneficial in modeling the reverberation of rooms or musical instrument bodi...

Integration of planar circuits to non-planar ones has been recently considered as a credible technique for low-cost mass production of microwave and millimeter-wave circuits and systems. This paper regards these concepts that provide for a complete integration of planar circuits and waveguide filters synthesized on a single substrate by means of metalized post (via-hole) arrays. A method of des...

A six-pole Q-band waveguide filter with a notch frequency above the has been developed for plasma diagnostics. The previous paper [Nishiura et al., J. Instrum. 10, C12014 (2015)] reported that exists within standard band. In this study, newly required extends function, which prevents thorny wave from being mixed into an instrument beyond bandwidth of waveguide. mode control technique cavities r...

Substrate-integrated waveguide (SIW) is a modern day (21st century) transmission line that has recently been developed. This technology introduced new possibilities to the design of efficient circuits and components operating in radio frequency (RF) microwave spectrum. Microstrip are very good for low applications but ineffective at extreme frequencies, involve rigorous fabrication concessions ...

The potential to implement microwave filters with special properties, by loading a waveguide with artificial Single Negative (SNG) or Double negative (DNG) materials was investigated. The SNG or DNG medium was structured with dielectric spherical particles of high permittivity embedded in a dielectric material of much smaller permittivity. Numerical analysis of the frequency response of the wav...

We propose a method for miniaturization of filters based on curved waveguide Bragg gratings, so that long structures can be packed into a small area on a chip. This eliminates the stitching errors introduced in the fabrication process, which compromise the performance of long Bragg gratings. Our approach relies on cascading curved waveguide Bragg gratings with the same radius of curvature. An a...

Silicon photonics is widely regarded as a promising technology to meet the requirements of rapid bandwidth growth and energy-efficient on-chip communication while reducing cost per bit. In all potential application areas it is widely recognized that use of wavelength division multiplexing (WDM) techniques will be critical in achieving the required high levels of data transmission. Si photonics ...

The objective of this article is to describe the design a new family wideband filters in rectangular waveguide based on hybrid couplings and staircase configuration. use E-plane T-junctions folded structures also discussed, order enhance out-of-band response selectivity filter with respect current state art. several prototypes discussed detail, including manufacturing sensitivity high-power ana...

Resonant reflection of light by a waveguide grating provides simultaneous spectral and spatial filtering of the reflected beam. Narrowband transmission filter based on a plasmon resonance shows high out-of-band suppression in a wide spectral range. Dielectric waveguide grating mirror improves spatial coherence of a semiconductor laser. OCIS codes: (050.1950) Diffraction gratings; (130.2790) Gui...